The Diffraction Limited Spectro-Polarimeter (DLSP) is a
collaborative project between the National Solar Observatory
(NSO) and the High-Altitude Observatory (HAO). This new
instrument, along with the high-order Adaptive Optics
(AO-76) system (which is being developed at the NSO) has
been used to measure magnetic fields on the solar
photosphere at the highest spatial resolution (0.2~arcsec
which is the diffraction limit of the DST at the 630.0nm
wavelength). A few preliminary results obtained from the
first observing run with this instrument are,

(1) The fine structures present inside the sunspot umbra
(like the umbral dots) show upflows and reduced field
strengths compared to the surrounding umbra.

(2) The sizes of these umbral fine structures goes down to
the diffraction limit of the DST (about 0.2~arcsec). This
result confirms that the instrument did achieve its full
capability.

(3) There are small-scale convective up and down flows in
the light bridges. The strength of these flow is about a
km/sec. The field strengths are smaller in these regions
compared to the surrounding umbra. At some places in the
light bridges, the field strengths are as small as half of
the umbral field strength.

(4) There are small-scale upflows in the inner penumbra of
the observed sunspot. These regions coincide with the inner
foot-point of the bright penumbral filaments as seen in the
continuum intensity map. Some of these upflow regions also
show a reduced field strength.

The author(s) of this abstract have provided an email address
for comments about the abstract:
sankara@nso.edu